Raws li peb pom, hluav taws xob fiber ntau kis tau yog txoj hauv kev tshaj tawm mus xa xov wireless thiab teeb liab RF. Piv rau cov coaxial cable, cov kab hluav taws xob fiber optic muaj qhov zoo xws li cov teeb liab qis dua thiab qis dua qhov hnyav, tshwj tsis yog qhov no, nws tseem pheej yig dua cov coaxial cable. Tsuas yog los ntawm cov laj thawj no, fiber ntau qhov muag ua si lub luag haujlwm tseem ceeb hauv wireless network. Tom ntej no peb yuav qhia ntau cov fiber ntau cov khoom lag luam hauv cov ntawv thov sib txawv rau koj.
Fiber Optic Transmitter thiab Cov Txais
Kev ua haujlwm ntawm fiber ntau optical transmitter, optical transmitter nrog AWG pom ntawm daim duab, yog xa cov teeb liab RF rau hauv lub teeb liab kho qhov muag hauv 1. 3 μm, lub tswv yim impedance ntawm fiber ntau optical transmitter yog {{ 2}} Ω thiab cov zis tawm yog cov teeb liab kho qhov muag uas qhov ci ci tau ua tiav nrog RF voltage. Tus ntsuas hluav taws xob sab hauv rau cov twj tso tawm laser yog siv los soj ntsuam lub zog tawm thiab kho qhov tsis ncaj ncees tam sim no ntawm lub laser kom muaj qhov ntsuas qhov nruab nrab tawm mus tas li. Nws tswj cov xwm txheej nyob hauv kev ua tau zoo, qhov zoo tshaj plaws kab thiab ntev tshaj lub neej ntawm cov kab ke.
Cov kab hluav taws xob fiber ntau siv lub ntsuas hluav taws xob siab thiab rau kev xa cov cim hluav taws xob rau cov teeb liab RF. Nws feem ntau yog siv nrog fiber ntau kis. Lub suab qis qis teeb nce qib nce cov teeb liab rov qab mus rau qib yam xav tau RF. Peb FOCC txhua qhov kev xaiv fiber ntau dhau mus ua cov kev sib tw tsis tu ncua thiab ua kom ruaj khov thiab ua haujlwm ntev.
Fiber Optic Cables thiab Fiber txuas Optic
Zoo, raws li cov yam ntxwv tshwj xeeb ntawm RF hauv cov ntawv thov fiber ntau, tib hom fiber ntau cable yog qhov kev xaiv rau nws. Cov fiber muaj qhov tseem ceeb thiab qhov txiav txim siab qhov loj ntawm 9 / 125 μm, thiab cov fiber ntau qhov txuas tshwj xeeb rau kev ruaj khov thiab txuas ntawm lub teeb. Tab sis nyob rau hauv RF / fiber optic system, lub kaum sab xis txuas txuas yog siv ntau dua, xws li APC, UPC. Vim yog lawv, lawv tuaj yeem txo qhov pom kev kho qhov muag ntawm qhov chaw txuas. Nyob rau tib lub sijhawm, peb yuav tsum paub tias qhov kev cuam tshuam ntawm lub kaw lus yuav ua rau muaj suab nrov nrov, muaj qias neeg thiab lwm yam, ces tus txuas yuav ua rau lub siab txuas ntau dua tab sis kuj tseem muaj kev cuam tshuam. Yog li tus txuas yuav tsum tau ua kom huv, txoj hauv kev ua kom huv yog qhov siv 9 9% cawv thiab lint cov ntaub so dawb, ib txwm hloov lub hau ntawm lub taub hau thaum lub txuas tsis siv.
Cov ntawv thov
Hauv Tsev Tsim Kev Nyab Xeeb Pej Xeem, FOCC cov thev naus laus zis thiab Bidi fiber optic transceiver xa cov teeb liab thoob plaws cov fiber ntau optic network rau in-tsev teeb liab xa tawm. Cov txiaj ntsig ntawm cov hluav taws xob fiber ntau yog qhov kawg. FOCC cov cuab yeej siv sib txawv xa cov xov tooj cua RF hauv fiber ntau tau yooj yim thiab lawv khaws cov kev sib txuas lus tsis muaj kev cuam tshuam hauv lub tsev ntawm kev kub ntxhov, hluav taws thiab tub ceev xwm xov tooj cua RF. Ntsib nrog lub peev xwm kaw lus thiab txhim kho kev cia siab ntawm lub network. FOCC yog mus rau kev coj ua tus nqi xov tooj qis dua, nyab xeeb thiab txhim khu kev qha rau cov neeg siv.
Hauv kev ua tub rog, Hnub no lub ntiaj teb kev sib ntaus sib tua yog cov sib txuas tau zoo ntawm Cov Tub Rog, Navy, Coast Guard thiab Air Force cov koom haum tiv thaiv xav kom muaj lub zog, lawv xav tau kev saib xyuas thiab taug qab, nrog rau lub suab zoo, video thiab cov ntaub ntawv sib txuas lus, raws li rau cov kev cai no, FOCC RF kev daws teeb meem tsis sib xws rau kev xa xov tooj cua rau kev xa mus los ntawm tsawg zaus los ntawm VHF, UHF mus rau satellite-band kis. Cov kab hluav taws xob fiber ntau muab cov yeeb yam zoo tshaj plaws rau cov tub rog kev nyab xeeb hauv kev siv tub rog. Daim duab qhia tau hais tias tus tshwj xeeb txuas uas siv tau rau hauv daim ntawv thov tub rog. Peb nruj heev nrog rau cov qauv tsim thiab cov khoom siv zoo ntawm cov xim fiber ntau txuas.
Nrog rau kev tsim tawm hauv Is Taws Nem, wireless LAN thev naus laus zis thiab kev ua haujlwm xws li IEEE 802. kev tiv thaiv thiab txhim kho kev ua tau zoo hauv wireless spectrum, thiab muab lub peev xwm ntau dua rau cov neeg siv wireless. FOCC ua nws qhov zoo tshaj plaws rau kev daws teeb meem kev sib txuas lus ceev thiab zoo dua.